It's the Law—Iowa's Snowmobile Laws
Required Equipment on Snowmobiles

• Head Lamp and Tail Lamp: Every snowmobile operated from sunset to sunrise shall display a lighted headlight and taillight.
• Brakes: Every snowmobile shall be equipped with brakes which conform to standards prescribed by the director of transportation.
• Mufflers: A snowmobile shall not be operated without suitable and effective muffling devices which limit engine noise to not more than 86 decibels and measured on the “A” scale at a distance of 50 feet. The DNR may adopt rules with respect to the inspection of snowmobiles and the testing of their mufflers. See “A Scale” definition.